When the patient enrolls on this study, they will be assigned a dose of CD30 chimeric receptor-activated T cells. The dose level of cells that they will receive will not be based on a medical determination of what is best for the patient, instead the dose is based on the order in which the patient enrolled on the study relative to other participants. Subjects enrolled earlier in the study will receive a lower dose of cells than those enrolled later in the study. The risks of harm and discomfort from the study treatment may bear some relationship to the dose level. The potential for direct benefit, if any, may also vary with the dose level.